Finding the Fourth Proportional to 1,065,510.42, 1,598,896.17 and 392,064.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,510.42 : 1,598,896.17 = 392,064.63 : x
2. Step 2: Convert to fraction form
   1,065,510.42/1,598,896.17 = 392,064.63/x
3. Step 3: Cross multiply
   1,065,510.42x = 1,598,896.17 × 392,064.63
4. Step 4: Simplify right side
   1,065,510.42x = 626,870,635,299.47
5. Step 5: Solve for x
   x = 626,870,635,299.47/1,065,510.42
6. Step 6: Final answer
   x = 588,328.96